<?php
/**
 * Copyright (c) Enalean, 2011. All Rights Reserved.
 *
 * This file is a part of Tuleap.
 *
 * Tuleap is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Tuleap is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Tuleap; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */


function notEmpty($e) {
    return !empty($e) || $e === '0';
}

function unixPathJoin($elements) {
    
    $path = implode('/', array_filter($elements, 'notEmpty'));
    return preg_replace('%/{1,}%',"/", $path);
}

function userRepoPath($username, $namespace) {
    $path = unixPathJoin(array('u', $username, $namespace));
    if (strpos($path, '..') !== false) {
        throw new MalformedPathException();
    }
    return $path;
}
?>
